Yes, there exists scholarship opportunities to assist in the cost of studying aboard for a semester and during the summer. The Benjamin A. Gilman International Scholarship Program offers grants for U.S. citizen undergraduate students of limited financial means to pursue academic studies or credit-bearing, career-oriented internships abroad. Such international exchange is intended to better prepare U.S. students to assume significant roles in an increasingly global economy and interdependent world.
You may learn more about the Benjamin A. Gilman International Scholarship program and apply through their website. Please pay close attention to the deadlines for application.
You may also want to download this overview of the scholarship program.